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Linux Socket Programming by Example - Warren Gay

Linux Socket Programming by Example
	Table of Contents
	Preface>
	I: Basic Socket Concepts
	1. Introducing Sockets
	2. Domains and Address Families
	3. Address Conversion Functions
	4. Socket Types and Protocols
	5. Binding Addresses to a Socket
	6. Connectionless-Oriented Protocols
	7. Connection-Oriented Protocols for Clients
	8. Connection-Oriented Protocols for Servers
	9. Hostname and Network Name Lookups
	II: Advanced Socket Programming
	10. Using Standard I/O on Sockets
	11. Concurrent Client Servers
	12. Socket Options
	13. Broadcasting with UDP
	14. Out-of-Band Data
		Defining Out-of-Band
		Understanding the Need for Out-of-Band Data
		Sockets and Out-of-Band Data
		Variations in Implementation
		Using Out-of-Band Data
		Understanding the Urgent Pointer
		Receiving Out-of-Band Data Inline
		Limitations of the Urgent Mode Pointer
		What's Next
	15. Using the inetd Daemon
	16. Network Security Programming
	17. Passing Credentials and File Descriptors
	18. A Practical Network Project
	Appendixes
	A. Socket Function Quick Reference
	B. Socket-Related Structures Reference
	C. Useful Network Tables
	glossary
	Index

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Chapter 14. Out-of-Band Data

This chapter will bring you into the fray of using out-of-band data with TCP. You will learn why it is provided and about some of its pitfalls. Most important of all however, you will become equipped to properly apply out-of-band modes of communication, with any protocol that supports it.

Here is a summary of what will be covered in this chapter:

Define what out-of-band data is.
Why is it needed?
What are the socket related issues of using it?
What are the variations in the TCP/IP implementation?
How do you use it with TCP stream sockets?

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